HCCI Combustion in DI Diesel Engine

Hasegawa, Ryô; Yanagihara, Hiromichi

doi:10.4271/2003-01-0745

Cited by 306 publications

(124 citation statements)

References 6 publications

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“…Various fuel-injector types and techniques have been studied. Double injection technique was used to premix the air-fuel before ignition [29]. The first injection was used as an early injection for fuel diffusion and the second injection was used as an ignition trigger for all the fuel.…”

Section: ) Diesel Low Temperature Combustionmentioning

confidence: 99%

Survey of greener ignition and combustion systems for internal combustion engines

Luo

Tian

et al. 2015

2015 21st International Conference on Automation and Computing (ICAC)

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Abstract-The spark and compression ignition principles of petrol and diesel internal combustion engines (ICEs) have not advanced for a century. These do not lead to complete combustion and hence result in high exhaust emission and low energy efficiency. This paper presents a comprehensive survey on the attempts and developments of greener ignition and combustion systems for ICEs and points out that homogeneous charge microwave ignition (

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Section: ) Diesel Low Temperature Combustionmentioning

confidence: 99%

Survey of greener ignition and combustion systems for internal combustion engines

Luo

Tian

et al. 2015

2015 21st International Conference on Automation and Computing (ICAC)

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“…Application of low-temperature combustion (LTC) concept has since been explored extensively to reduce in-cylinder emission of NOx and soot (Hasegawa and Yanagihara, 2003). The LTC strategy can be illustrated on a temperature (T) and equivalence ratio (ϕ) map.…”

Section: Introductionmentioning

confidence: 99%

Low-Temperature Combustion of High Octane Fuels in a Gasoline Compression Ignition Engine

et al. 2017

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Gasoline compression ignition (GCI) has been shown as one of the advanced combustion concepts that could potentially provide a pathway to achieve cleaner and more efficient combustion engines. Fuel and air in GCI are not fully premixed compared to homogeneous charge compression ignition (HCCI), which is a completely kinetic-controlled combustion system. Therefore, the combustion phasing can be controlled by the time of injection, usually postinjection in a multiple-injection scheme, to mitigate combustion noise. Gasoline usually has longer ignition delay than diesel. The autoignition quality of gasoline can be indicated by research octane number (RON). Fuels with high octane tend to have more resistance to autoignition, hence more time for fuel-air mixing. In this study, three fuels, namely, aromatic, alkylate, and E30, with similar RON value of 98 but different hydrocarbon compositions were tested in a multicylinder engine under GCI combustion mode. Considerations of exhaust gas recirculating (EGR), start of injection, and boost were investigated to study the sensitivity of dilution, local stratification, and reactivity of the charge, respectively, for each fuel. Combustion phasing (location of 50% of fuel mass burned) was kept constant during the experiments. This provides similar thermodynamic conditions to study the effect of fuels on emissions. Emission characteristics at different levels of EGR and lambda were revealed for all fuels with E30 having the lowest filter smoke number and was also most sensitive to the change in dilution. Reasonably low combustion noise (<90 dB) and stable combustion (coefficient of variance of indicated mean effective pressure <3%) were maintained during the experiments. The second part of this article contains visualization of the combustion process obtained from endoscope imaging for each fuel at selected conditions. Soot radiation signal from GCI combustion were strong during late injection and also more intense at low EGR conditions. Soot/temperature profiles indicated only the high-temperature combustion period, while cylinder pressure-based heat release rate showed a two-stage combustion phenomenon.

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“…Various methods are being pursued, but they all rely on the principle of dilute premixed or partially premixed combustion to reduce emissions. This approach is exemplified by a technique commonly known as homogeneous charge compression-ignition (HCCI) [1][2][3][4][5][6][7].…”

Section: Introductionmentioning

confidence: 99%

Emission Characteristics for a HCCI Diesel Engine with EGR Using Split Injection Methodology

Lee¹,

Jung²,

Lee³

2017

Preprint

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Currently, for the serious air pollution and global warming effect caused by the substance released from the present vehicle, it is expected that the regulatory requirements for the emission will become more stringent. A new concept of the combustion technology that can reduce the NOx and PM related to combustion is urgently needed. To cope with such social demands, many developed countries are efforts to develop the environment friendly vehicle engine at the national lever in order to satisfy with strengthening emission control. As a main combustion technology among new combustion technology for the new generation engine, the homogenous charge compression engine (HCCI) is expanding its application range by employing multiple combustion mode, catalyst, direct fuel injection and partially premixed combustion.In this paper, a multi-injection method in order to apply the HCCI combustion method without mainly altering engine specifications and practicality by referring to the results of the HCCI engine was investigated. Applied with forced charging, exhaust gas recirculation (EGR) and compression ratio change, it was evaluated to the possibility of securing optimum fuel economy and emission reduction in the IMEP 0.8 MPa range.

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HCCI Combustion in DI Diesel Engine

Cited by 306 publications

References 6 publications

Survey of greener ignition and combustion systems for internal combustion engines

Survey of greener ignition and combustion systems for internal combustion engines

Low-Temperature Combustion of High Octane Fuels in a Gasoline Compression Ignition Engine

Emission Characteristics for a HCCI Diesel Engine with EGR Using Split Injection Methodology

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